Can't say about O2 but 4G is definitely effecting Vodafone with slow DATA rates (even when phone shows its got H or even H+) and we are talking less than 150kbps!

Also dropped calls and calls being unable to connect!

I use to think Vodafone and O2 were the best and shame that when I tried the others I got no signal at all at home or some of the places I go for work.

I'm in Glasgow and transferred from EE4g to Vodafone. I have found Vodafone to be pretty good with only an odd dropped call. Speeds on 3g are good too. I found EE to be dropping a huge number of calls in my area. This is why I changed.

I'm in Glasgow and transferred from EE4g to Vodafone. I have found Vodafone to be pretty good with only an odd dropped call. Speeds on 3g are good too. I found EE to be dropping a huge number of calls in my area. This is why I changed.

Vodafone are capping 3g to 10Mbps. always seem to get dead on 10Mbps here.

3G shouldn't be capped if you are on a 4G (not just Red) plan so you should report it. I had a few months of the 10Mbps cap after it was introduced but have seen >20 Mbps on 3G since getting a 4G plan.

No signal on the seafront in Brighton, if anyone from 02 is reading this it is near West Street, that's how much they care about their customers. We are not even getting 4g here for ages, if at all, so it is just down to crappy service for us. There seem to be plenty of transmitters or whatever they are called, presume they are broken even though web site says good service. Parts of West Sussex also have dreadful, if any, reception. Yes, I have reported it to 02.

Sorry but if O2 really cared about 3G data speeds and coverage they would have matched their competitors speeds and coverage earlier by upgrading to dual carrier and having 98% coverage like MBNL.

Crocodile concern (that's like crocodile tears, I just made it up)

Well, there is the drawback that they didn't have 3 networks' worth of money and resources to throw at it, evidenced by the fact no other network in the same situation did any better (Orange pre-EE, Vodafone today).

Different bandwidth
Different infrastructure
Different use of the signal, 4G is back to TDM right?

No.

On EE 4G uses the same frequency band.
On most/all networks it uses the same infrastructure - backhaul and parts of core at least.
4G is not TDM. Nobody uses TDM 4G in the UK at the moment. One network has the capability to do so but are suggesting that they won't.

Different bandwidth
Different infrastructure
Different use of the signal, 4G is back to TDM right?

I'm convinced it is as have been with Vodafone on and off for 10+ years and never had many problems with calls until 4G was launched (also the data speed with 3G as well - always use to be at least 3meg download but has never got above 150kbps since 4G was around in Harlow Town centre).

I've never had it before where more than every 3rd call does not connect (both on my phone and also my works phone that are both on Vodafone) and also the same for calls dropping out a LOT more often.

It's never been half this bad as I've only ever had it with less than say 1 in 20 calls not connecting in the past.

Also what else would you put the constant slow data speeds down to in 1 area when it was exactly the same time they switched on the 4G it started happening?

It might not be directly related to the 4G frequency but they have done something since it's launch as like I say it's dropped from constantly getting 3meg+ download to never above 150kbps since the switch on.

Not denying whether there was an effect or what the effect may have been. Simply put, you have to come up with more than "I think it happened around the same time" to establish a causal link. Particularly if we want to establish why it's happening and what to do about it.

Science and technology develops on the basis of verifying repeatable phenomena under controlled conditions and building an understanding of the underlying processes based on that, or using the former to verify the latter. "I think it happened around the same time" is neither.